Four goals from Robert Lewandowski fired the Schwarzgelben into a commanding aggregate lead over the Spanish giants, and their coach was left enthused by his players' high-octane approach which brought him back memories of 'total football' advocated by Netherlands in the 1970s.

"[Dortmund] are like this unbelievable team, I can't explain it in English ... we are like Robin Hood," the 45-year-old told Sky Sports.

"It was brilliant, they did not stop, I brought on two defensive players and they ran into the box and that was total football. It was great to see."

Klopp then gave his analysis on the match, and while he admitted that Dortmund temporarily succumbed to Madrid's strengths after flying out of the traps, he was delighted to see his team respond to his half-time instructions.

"It was unbelievable, a great game from my team, it was so difficult to play because Madrid are so strong, so fast and so brilliant on the counter-attack," he added.

"I think the first 25 minutes were great and then we lost our game a little bit - not by much, but enough to let them come up and they equalised.

"So I told them at the break 'maybe you think the referee made a wrong decision [referring to the penalty shout], but in the last game we had a decision go against us and we were the winners'.

"This is what we wanted to do, and we went back to playing like we did during the first 25 minutes."